Performance data modifying method, performance data modifying apparatus, and storage medium

Abstract

An application program for generating performance data of a user input musical score performs a modifying process of modifying only a note with a musical sign such as a turn sign, so that as the generated performance data is reproduced, unnatural musical sounds are generated. For example, as a player uses a turn rendering with an acoustic piano or the like, there is a tendency that a key depression force for a note just after the turn rendering also becomes weak. With conventional techniques, however, this state cannot be automatically realized. In order to generate performance data whose notes are coupled naturally, output performance data is first generated at Steps SP or SP for a note (subject note) with a turn sign. Then, a velocity of performance data for a note (related note) positioned immediately after the subject note is weakened at Step SP or SP